An arrhythmia is a problem with the speed or rhythm of the heartbeat. During an arrhythmia, the heart can beat too fast, too slow, or with an irregular rhythm. A heartbeat that is too fast is called tachycardia. A heartbeat that is too slow is called bradycardia. Most arrhythmias are harmless, but some can be serious or even life threatening. When the heart rate is too slow, too fast, or irregular, the heart may not be able to pump enough blood to the body. Lack of blood flow can damage the brain, heart, and other organs.
Affecting 33.5 million patients worldwide, atrial fibrillation is the most common form of cardiac arrhythmia. As if having an irregular heart beat wasn't troubling enough, patients with atrial fibrillation are also much more likely to have a stroke.
A new, computer-based screening method could reveal the virus-fighting potential of drugs originally developed to treat other conditions, reports a study in PLOS Computational Biology.
The heart cannot regenerate muscle tissue after a heart attack has killed part of the muscle wall, and that dead tissue can strain surrounding muscle, leading to a lethal heart enlargement.
The promise of stem cells to treat cardiovascular disease may soon be a step closer to clinical application as scientists from three institutions seek to perfect and test three-dimensional "heart patches" in a large animal model — the last big hurdle before trials in human patients.
VTT Technical Research Centre of Finland has developed a mobile app and thumb-size device that help to prevent cerebral infarctions at an early stage, during asymptomatic atrial fibrillation.
Medications prescribed to prevent heart attacks such as statins and aspirin are also associated with reduced heart attack severity, according to research published in PLOS ONE.
Two PhD students, who secured sponsorship from leading medical device designer and manufacturer ITL, have revealed progress on the development of ground-breaking medical devices.
The Canadian Journal of Cardiology has just released the 2016 Focused Update to the Canadian Cardiovascular Society's atrial fibrillation (AF) guidelines.
In the August 31 issue of Science Translational Medicine, new research from the University of Chicago shows how deficits in a specific pathway of genes can lead to the development of atrial fibrillation, a common irregular heartbeat, which poses a significant health risk.
For heart failure patients with cardiac implantable electronic devices (CIEDs), remote monitoring of their condition does not improve outcomes compared to usual care, according to Hot Line results presented at ESC Congress 2016 and to be simultaneously published in JAMA.
The risk of traffic accidents is increased by 50% in patients with an implantable cardioverter defibrillator (ICD) compared to age and gender matched controls, according to a Danish nationwide registry study presented at ESC Congress 2016 today.
Alcohol related hospitalisation is associated with a doubled risk of ischaemic stroke risk in patients with non-valvular atrial fibrillation, according to a study presented at ESC Congress 2016 today by Dr Faris Al-Khalili, cardiologist, Karolinska Institutet, Danderyd Hospital, Stockholm, Sweden.
Direct catheter-based thrombectomy is equally effective to bridging thrombolysis in the treatment of acute ischaemic stroke, according to results from the observational PRAGUE-16 registry study presented at ESC Congress 2016 today.
The new oral anticoagulants provide the same stroke prevention as warfarin but cause less intracranial bleeding, reports an observational study in more than 43 000 patients presented at ESC Congress 2016 today by Dr Laila Staerk, a research fellow at Herlev and Gentofte University Hospital, Denmark.
Smartphones can be used to detect atrial fibrillation with existing hardware, according to research presented at ESC Congress 2016 today.1 A low-cost application (app) has been developed that uses the phone's own accelerometer and gyroscope to check for atrial fibrillation.
The first European Society of Cardiology (ESC) Guidelines on Atrial Fibrillation developed in collaboration with the European Association for Cardio-Thoracic Surgery (EACTS) are published online today in European Heart Journal and the European Journal of Cardio-Thoracic Surgery, and on the ESC Website.
The high levels of caffeine in energy drinks may lead to cardiac complications, suggests a case report in the July/August Journal of Addiction Medicine, the official journal of the American Society of Addiction Medicine. The journal is published by Wolters Kluwer.
Researchers at the University of Rochester Medical Center recently discovered a genetic link between Long QT Syndrome (LQTS), a rare cardiac rhythm disease, and an increased risk for seizures.
According to a recent Framingham Heart Study, people who experience the heart arrhythmia atrial fibrillation (AF), may also suffer from a smaller brain, specifically reduced frontal lobe volume.
Death is a bigger risk than stroke among patients with atrial fibrillation, particularly during the first 4 months after diagnosis, research shows.